Home / 12,149.18-18,209.73-5,484.29

Finding the Fourth Proportional to 12,149.18, 18,209.73 and 5,484.29

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Solution

The fourth proportional to 12,149.18, 18,209.73 and 5,484.29 is: 8,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.18 : 18,209.73 = 5,484.29 : x
  2. Step 2: Convert to fraction form
    12,149.18/18,209.73 = 5,484.29/x
  3. Step 3: Cross multiply
    12,149.18x = 18,209.73 × 5,484.29
  4. Step 4: Simplify right side
    12,149.18x = 99,867,349.09
  5. Step 5: Solve for x
    x = 99,867,349.09/12,149.18
  6. Step 6: Final answer
    x = 8,220.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.